The Intel Core i3-12100F is the objective winner of this comparison, securing victories in eight out of fourteen evaluated categories. Its most significant technical advantage is its L2 cache, which performs 233% better than that of the Intel Core i5-10400F. This substantial cache improvement provides a clear architectural lead for the newer processor, allowing it to outperform the older model across the majority of the measured specifications.

Users prioritizing raw processing efficiency and modern architecture should select the Intel Core i3-12100F for its superior cache capacity. Conversely, the Intel Core i5-10400F remains the appropriate choice for tasks that specifically benefit from a higher core count, as it offers 50% more total cores than the alternative. Choosing between these two components depends entirely on whether your workload favors the cache-heavy design of the newer model or the increased core density of the older one.